Multiple gas burner



W. F2. VAN DlVER MULTIPLE GAS BURNER Filed Feb. 2l, 1246 Im/enfer Patented Feb. 14, 1950 ll Mypinventionlfrelatesato;gasaburaersiand.more @particularlysto;burnerslusinghaturat:gas.

The. -obiectrotemyzinventionds to, provide a2. gas burner;-consi'fructed practically@l entirely. yof; pipes @of differentzsizessandpplatesmmakingitpossible f 5 atto. constructburnerssotf arly -,desired size, by using dargerlor smalleiepipes.

Other aobiects 1ofsn'ly,;imrention..may, appear in the following specicationldescribipg `my. inventionawithreference tothe: accompanying drawing t illustrating a preferred embodiment of my invention. Iti isnhoweversftoubegnnderstood that lmyinvention is not to be, limited or restricted to the 'exact construction and combination of parts described in the specificati-onandshown in the drawing'ebiitthat.siichchanges and modiflcations can be made whichl fall in the seppe, of I.the 'claims appended hereto.

Figure. l.' is a top view 'ftheburnezzaccordingeo directlyunderthe .gasduct ,pipes i4.. J 2e. and. l 5. It forms ,the .gasmanifold andhas-an opening to my invention partly shownin section; and

Figure 2 is.asection'alfyiewrtaken on line 2-2 in Eigure 1.

l.Rieferripg now to the 'drawing in.. .,detail"the burner according to my'invention has afcirculargg bottom plate I resting on foot brackets II. In the center of this plate a pipe I2 is arranged extending through a hole in the bottom plate and fastened thereon so that a gastight seam is obtained, for instance, by Welding. A pipe I3 is welded to the bottom plate III and also weldthereon to form a gastight connection. The diameter of the plate I0 equals the outside diameter of the pipe I3.

Diametrically opposite to each other two other pipes I4 and I5 extend through holes in the bottom plate I0 and are welded thereto to form gastight seams. They are located at equal distances from the center pipe I2.

A pipe I6 surrounds the center pipe i2 and is welded concentrically therewith to the bottom plate Ill, forming a gastight connection with this plate and extending upwardly therefrom.

A ring shaped baflie plate Il is connected rigidly and gastight with the upper end of the pipe I6. The center hole in the ring shaped baille plate I'I has the same diameter as the inside of the pipe I6. At its outer circumference the baiiie plate I1 extends beyond the outside pipe I3 and the pipe I6 is somewhat longer than the outside i pipe so that an opening is formed between the ring shaped baille plate I'I and the top edge of the outside pipe I3.

A pipe I8 is connected gastight with the ring shaped baille plate I1 and extends downwardly equal distance from the vertical gas duct pipe I4 ZLClaims. (CL. 158-1104) `as the;N innerfwallapipe. q deleoting ,-,wall fo 9,s (3X-tendsxdovllngl is' provided with azpluralityfoff holes 2Il-5 therein The; pipe .l 8 formsa he outer .e mixing chamber the bottomgplate. I (ligand adjacent said bottomplate.

An f inner. deileotingjpipe; ZI .is iastenedrfrtoathe bottomplateV Ilandsurrounds -thefgas ductgpipe II 2 concentricallyjherewith. 4.,It.-ls-.arfralgede, ap-

-f -l roximately halfway betweenthe:innerewallpipe LI 6 Vand centerygaa duct; I2. l It: extends @upwardly beyond. :the ring shapedlbaliie plate Il; and*VA acircularbale plate V22 7isgfasteried gastight-.fto` -its top and-extends -withdts circumferenceafbeycnd ...the inner-wallfpipe I6. .-.Aipluralityfofi openings l .Y cent the bottomplate :I ,0.

23 yare providedin..thedeflectiugg pipe. 2 badja- A main.y gas. dnet24,'@which-sis,,connectedswlth a source of natural gas (not shownl...is-.sl1 lp0rt ed.by..the .foot.brackets I Land ,extendsdiametrically. underneath .the circularbottom. Yplate 'I 0 25 directlyunden each. of. said gasductppes.

.When gas .isadmtted intdthe,` manifold A24; it will... flowv out-ofi,,.I'Joe".-holes.= .2 5,- iritdthe gas.duct pipes `I2,` I4 and' I5. "The gas' in' the ducts I4 and I5l hits the ring shaped baille plate I'l and flows downwardly through the outer mixing chamber I9 as indicated by the arrows in said chamber. Thereby the gas will be mixed thoroughly with air and this mixture ows through the holes 2S in the delecting pipe I8 into the space between this pipe and the outer pipe I3, which it will leave through the opening between the top edge of the outer pipe and the baffle ring I'I. Ignited, it forms an outer flame of intense heat.

Gas owing upwardly through the center gas duct I2 is deeoted by the bale 22 and the inner defiecting pipe 2| to flow downwardly. Thereby this gas is thoroughly mixed with air. It flows through the openings 23 in the deecting pipe 2| into the Space between this pipe and the inner wall pipe I6. Flowing upwardly in this space it leaves the burner through the space between the circular baiile 22 and the ring baille I'I ready to be ignited and to form the inner flame of the burner.

The above described burner produces a perfect mixture of gas and air insuring perfect combustion and producing an exceedingly hot flame.

Having described my invention what I claim and desire to secure by Letters Patent, is:

l. A gas burner having a gas manifold connected with a source of gas and provided with a plurality of outlet openings, and an inner and outer concentric aeratng chamber, said burner including a circular bottom plate, a plurality of brackets supporting the bottom plate and the manifold, the manifold extending diametrically underneath the bottom plate, a pipe sealed to the bottom plate and extending upwardly therefrom and forming the outer wall of the burner, a second pipe sealed to the bottom plate concentric to the outside wall inwardly thereof and forming the inner wall of the outer and the outer wall of the inner aerating chambers, an annular baille plate sealed to the top of said second pipe, said second pipe being longer than said first pipe, the marginal edge of said baille extending radially beyond said first pipe, a gas duct pipe arranged over each outlet opening in said manifold and extending upwardly through said bottom plate, a deflecting wall pipe fastened onto the bottom plate inside said second pipe and concentric thereto, a plurality of openings in said deilecting wall pipe adjacent said bottom plate, said deilecting wall pipe being longer than said second pipe, a baille disc sealed to the top of said deilecting wall pipe, the marginal edge of said disc extending radially beyond said second pipe, an outer deilecting wall pipe arranged inside said ilrst pipe intermediate the same and said second pipe and concentric with all of said pipes, said outer deecting wall pipe being sealed to said annular baule and extending downwardly to said bottom plate, a plurality of holes in said outer defiecting wall pipe adjacent said bottom plate, one of the gas duct pipes leading into the space inside said inner dei'lecting wall pipe and the other gas duct pipes leading into the space between said second wall pipe and said outer deilecting wall pipe.

2. A gas burner, comprising means forming at least two concentric aerating chambers, a common floor for both of said chambers, a substantially cylindrical vertical outer wall for one chamber, a substantially cylindrical inner wall `i'or said one chamber, said inner wall being concentric to said iirst wall and inwardly spaced 4 therefrom, said second wall extending substantially above said rst wall and deiining the outer wall of the other of said chambers, a flat plate arranged about the extending end of said second wall and secured thereto, a substantially cylindrical baille positioned in said one chamber and spaced inwardly from one wall of the chamber and outwardly of the other, said baille having the end adjacent said oor provided with openings extending therethrough and having the other end secured to said flat plate, a second substantially cylindrical baille positioned in said other chamber and spaced inwardly from the outer wall of the latter chamber, said second-named baille having the end adjacent said floor provided vwith openings extending therethrough and having the other end extending substantially above the outer wall of said other chamber, a second fiat plate positioned upon the extending end of said second-named baille and closing lthe latter end, said second-named flat plate extending outwardly from said second-named baille, and means for admitting gas and air to each of said chambers inwardly of said bailles.

WILLIAM R. VANDIVER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,253,781 Brown Jan. l5, 1918 1,706,087 Vaughn Mar. 19, 1929 1,935,346 Blanchard Nov. 14, 1933 FOREIGN PATENTS Number Country Date 324,657 France Sept. 22, 1902 

